The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2013
Filed:
Sep. 17, 2009
Koji Arita, Osaka, JP;
Takumi Mikawa, Shiga, JP;
Mitsuteru Iijima, Osaka, JP;
Kenji Tominaga, Kyoto, JP;
Koji Arita, Osaka, JP;
Takumi Mikawa, Shiga, JP;
Mitsuteru IIjima, Osaka, JP;
Kenji Tominaga, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A current steering element which can prevent occurrence of write disturb even when electric pulses having different polarities are applied and can cause large current to flow through a variable resistance element, and with which data can be written without problem. In a storage element () including: a variable resistance element () whose electric resistance value changes in response to application of electric pulses having a positive polarity and a negative polarity and which maintains the changed electric resistance value; and the current steering element () that steers current flowing through the variable resistance element () when the electric pulses are applied, the current steering element () includes: a first electrode (); a second electrode (); and a current steering layer () interposed between the first electrode () and the second electrode (). When the current steering layer () includes SiN(0<x≦0.85) and a thickness of d [nm], a relationship between a nitrogen composition ratio x and the thickness d is in a range represented by a predetermined conditional expression.